Shivani Mall created VXQUERY-168:
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             Summary: Nested Plans
                 Key: VXQUERY-168
                 URL: https://issues.apache.org/jira/browse/VXQUERY-168
             Project: VXQuery
          Issue Type: Bug
            Reporter: Shivani Mall
            Priority: Critical


Queries that have multiple let, for, where and return (FLOWR) 
statements/expressions, tend to create very large queriy plans with nested 
subplans. Because these are not optimized properly, these give the following 
error: <b>Attempting to construct a nested plan with 4 operator descriptors. 
Currently, nested plans can only consist in linear pipelines of Asterix micro 
operators. </b> 




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